Wednesday
April 1, 2015

Homework Help: statistics

Posted by treal on Tuesday, August 23, 2011 at 6:59pm.

a researcher is interested in studying people's mean age in a certain region. If the population standard deviation is known to be 8 years and 1.5 year of error margin is allowed, find the minimum simple size the researcher needs to use, knowing that he is going to conduct his study using 95% confidence level.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistics - A researcher is interested in studying people’s mean age in a ...
statistics - what are the mean and standard deviation of a sampling distribution...
statistics - Ramdom sample of 41 car owners results in a mean of 7 years. ...
statistics - A researcher wishes to estimate the mean height of women aged ...
social statistics - a smoking researcher is interested in estimating the average...
Statistics - data from sample of 400 cases, variable has 95% confidence interval...
Statistics - A population has a standard deviation of 15.2. How large a sample ...
statistics - 1.A magazine reported that 6% of Americans read the news paper ...
Statistics - 1. A study of 40 people found that they could do on the average15 ...
statistics - A group is studying age distribution of people living in town. The ...

Members